Monthly outlook for Mendon, MO: average high 77°, average low 57.2°. That is 6.7° above the climate normal for October. Precipitation is expected on 4 days (about 0.7 inches), against a normal of 4 days and 1.7 inches. The warmest day looks like 14 October (90.6°), the coolest 23 October (43.3°).
77°/57.2°
Average high / low
+6.7°
Above normal
4 / 4
Wet days / normal
0.7 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 October – 17 October
80.5°
66.1°
+8°
18 October – 27 October
71°
61.8°
+5.1°
28 October – 6 November
at normal
57.2°
—
October records over 66 years
92.1°10 October 1963All-time high
24.1°31 October 1993All-time low
Climate normals and records are computed from the nearest reference point — Laclede (14 mi).
Fri, 0987° / 62°0
87 °
Mendon, Friday, 9 October
Clear. High 87°, low 62°.
Pressure30.03 inHg
Wind8.2 mph S
Humidity61%
Visibility6.2 mi
Dew point66°
Sat, 1081° / 63°0
81 °
Mendon, Saturday, 10 October
Overcast. High 81°, low 63°.
Pressure30.00 inHg
Wind7.8 mph S
Humidity60%
Visibility6.2 mi
Dew point62°
Sun, 1183° / 59°0
83 °
Mendon, Sunday, 11 October
Clear. High 83°, low 59°.
Pressure29.94 inHg
Wind5.8 mph S
Humidity51%
Visibility6.2 mi
Dew point58°
Mon, 1287° / 69°0
87 °
Mendon, Monday, 12 October
Clear. High 87°, low 69°.
Pressure29.83 inHg
Wind12.3 mph SW
Humidity49%
Visibility—
Dew point61°
Tue, 1382° / 69°0.02
82 °
Mendon, Tuesday, 13 October
Light rain. High 82°, low 69°.
Pressure29.88 inHg
Wind10.4 mph SW
Humidity63%
Visibility—
Dew point67°
Wed, 1491° / 64°0.11
91 °
Mendon, Wednesday, 14 October
Light rain. High 91°, low 64°.
Pressure29.77 inHg
Wind16.6 mph SW
Humidity56%
Visibility—
Dew point65°
Thu, 1588° / 72°0.09
88 °
Mendon, Thursday, 15 October
Light rain. High 88°, low 72°.
Pressure29.83 inHg
Wind19.6 mph SW
Humidity48%
Visibility—
Dew point65°
Fri, 1666° / 51°0.27
66 °
Mendon, Friday, 16 October
Rain. High 66°, low 51°.
Pressure30.36 inHg
Wind12.9 mph N
Humidity83%
Visibility—
Dew point51°
Sat, 1760° / 44°0
60 °
Mendon, Saturday, 17 October
Overcast. High 60°, low 44°.
Pressure30.59 inHg
Wind13.7 mph NE
Humidity49%
Visibility—
Dew point37°
Sun, 1864° / 45°0
64 °
Mendon, Sunday, 18 October
Overcast. High 64°, low 45°.
Pressure30.39 inHg
Wind9.1 mph E
Humidity44%
Visibility—
Dew point36°
Mon, 1979° / 55°0
79 °
Mendon, Monday, 19 October
Overcast. High 79°, low 55°.
Pressure30.12 inHg
Wind14.4 mph SW
Humidity48%
Visibility—
Dew point52°
Tue, 2079° / 59°0
79 °
Mendon, Tuesday, 20 October
Overcast. High 79°, low 59°.
Pressure30.15 inHg
Wind7.1 mph SW
Humidity54%
Visibility—
Dew point56°
Wed, 2176° / 56°0.01
76 °
Mendon, Wednesday, 21 October
Light rain. High 76°, low 56°.
Pressure30.09 inHg
Wind7 mph S
Humidity54%
Visibility—
Dew point54°
Thu, 2263° / 49°0.17
63 °
Mendon, Thursday, 22 October
Light rain. High 63°, low 49°.
Pressure30.09 inHg
Wind17.7 mph NW
Humidity33%
Visibility—
Dew point33°
Fri, 2366° / 43°0
66 °
Mendon, Friday, 23 October
Clear. High 66°, low 43°.
Pressure30.12 inHg
Wind14 mph SE
Humidity37%
Visibility—
Dew point33°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 2461° / 46°0.14
61 °
Mendon, Saturday, 24 October
Climate normal for this date — 60-year average.
Average high61°
Average low46°
Average precipitation0.14 in
Chance of precipitation30%
Record high80° (2012)
Record low28° (1981)
Sun, 2560° / 45°0.08
60 °
Mendon, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high60°
Average low45°
Average precipitation0.08 in
Chance of precipitation28%
Record high80° (2011)
Record low29° (2013)
Mon, 2660° / 45°0.09
60 °
Mendon, Monday, 26 October
Climate normal for this date — 60-year average.
Average high60°
Average low45°
Average precipitation0.09 in
Chance of precipitation30%
Record high80° (1963)
Record low30° (1980)
Tue, 2759° / 44°0.08
59 °
Mendon, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high59°
Average low44°
Average precipitation0.08 in
Chance of precipitation23%
Record high76° (1999)
Record low25° (1997)
Wed, 2859° / 43°0.06
59 °
Mendon, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high59°
Average low43°
Average precipitation0.06 in
Chance of precipitation23%
Record high79° (2024)
Record low27° (1969)
Thu, 2960° / 44°0.08
60 °
Mendon, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high60°
Average low44°
Average precipitation0.08 in
Chance of precipitation33%
Record high81° (2024)
Record low25° (1980)
Fri, 3060° / 45°0.14
60 °
Mendon, Friday, 30 October
Climate normal for this date — 60-year average.
Average high60°
Average low45°
Average precipitation0.14 in
Chance of precipitation37%
Record high76° (2024)
Record low26° (1993)
Sat, 3158° / 44°0.2
58 °
Mendon, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high58°
Average low44°
Average precipitation0.2 in
Chance of precipitation37%
Record high77° (1968)
Record low24° (1993)
Sun, 0158° / 43°0.2
58 °
Mendon, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high58°
Average low43°
Average precipitation0.2 in
Chance of precipitation32%
Record high76° (1990)
Record low21° (2023)
Mon, 0256° / 41°0.09
56 °
Mendon, Monday, 2 November
Climate normal for this date — 60-year average.
Average high56°
Average low41°
Average precipitation0.09 in
Chance of precipitation28%
Record high78° (1964)
Record low20° (1991)
Tue, 0356° / 41°0.12
56 °
Mendon, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high56°
Average low41°
Average precipitation0.12 in
Chance of precipitation33%
Record high74° (1978)
Record low14° (1991)
Wed, 0455° / 41°0.1
55 °
Mendon, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high55°
Average low41°
Average precipitation0.1 in
Chance of precipitation27%
Record high75° (1978)
Record low13° (1991)
Thu, 0554° / 40°0.07
54 °
Mendon, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high54°
Average low40°
Average precipitation0.07 in
Chance of precipitation27%
Record high72° (1978)
Record low23° (1967)
Fri, 0655° / 40°0.09
55 °
Mendon, Friday, 6 November
Climate normal for this date — 60-year average.
Average high55°
Average low40°
Average precipitation0.09 in
Chance of precipitation25%
Record high73° (1999)
Record low23° (1991)
About the monthly outlook
How accurate is a 30-day forecast?
The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Mendon, MO are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.
What does "above normal" mean?
We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.
Where do the 66-year records come from?
They are real temperature extremes recorded in Mendon, MO since 1960: the highest and lowest reading for each calendar date, with the year it happened.
How often is it updated?
The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.